Radiator



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C, E. ASHROFT.

RADIATOR. No. 326,473. Patented Sept. 15,'1885.

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UNITED STATES PATENT OFFICE.,

CHARLES E. ASHCBOFT, OF'LYNN, MASSACHUSETTS..

RADIATOR,

SPECIFICATION forming part of Letters Patent No. 326,473, datedSeptember 15, 1885.

Application lcd June 28, 1884. (No model.)

To all whom, t may concern:

Be it known that I, CHARLES E. AsHoRoEfr, of Lynn, in the count-y ofEssex and State of Massachusetts, have invented certain new and usefulImprovements in Radiators, of which the following is a specification.

My invention has for its object to so construct the steam pipes andtheir adjunots that a circulation of steam shall be maintained at alltimes when any pressure is on, thus enabling me to use the steam in themost economical manner and to secure prompt heating action when thesteam is rst turned on. This object I attain by the mechanismillustrated' iu the accompanying drawings, in Which- Figure l is a vieWpartly iu elevation and partly in vertical section, and Fig. Zis ahorizontal section taken on line :c a: of Fig. l.

In the drawings, let A represent the base or" the radiator. This basemay be made of any suitable design and size, and is provided with aninlet-pipe, B, and an outlet-pipe, C, for supplying and discharging thesteam or hot water which is used for heating the radiator.

D D D represent a series of metallic tubes which are screwed into thebase A, as shown in the case of one of them at d, Fig. l. These pipes DD D are closed at their upper ends, and may be surmounted by anornamental cap-piece, H, Fig. 1.

Within each of the pipes D, I place a small pipe, E, open at both ends.Each ofthe small pipes E is made secure within its large pipe y D by anywell-known mechanical device.

The method of securing a constant ow through the radiator is as follows:I place at the lower end of each of the small pipes E a quarter-turn, K,so that the steam in oW- ing past them in the direction of the arrow Lwill have the action of a Giffard injector, and cause a current to tlowfrom the lower ends of the pipes E. Instead of the quarterturns K, thepipes E may be bent so as to form a turn equivalent to the quarter-turn.

By so constructing the pipes E that their lower end discharge shall bein line with the general current passing through the base A, I produce apartial vacuum, or what is sometimes ealled an induced current,7 in thepipe E. The induced current in the pipe E will soon exhaust all of theair from the pipe E and also from the pipe D, and thus insure a completecirculation of steam iu and through both pipes.

In a radiator, the combination of the base A, having anlinletapipe, B,and outlet-pipe C, and the radiating-pipes D, with the circulating-pipesE, located within the radiatingpipes D, each circulating-pipe E having acurved lower end, K, whereby its delivery is parallel with the generalflow through the base A, all operating together substantially asdescribed, and for the purpose set forth.

CHARLES E. ASHCBOFT.

Witnesses:

HELEN M. FEGAN, ALBERT D. GROVER.

